Psirow MR4

A prehistoric breed of Zuum with a large bony crest on its head with three spines adorning it, and a single horn on its nose, an arrangement that looks a like a Styracosaurus. Its neck, arms and tail all have a beautiful ring pattern on them.

Etymology Edit


Game Description Image
Monster Rancher 4 "This strong, patterned monster carries the pride of all its past generations on his shoulders. That's why the Psirow feels he just has to win!"
Monster Rancher Advance N/A Psirow MRA
Monster Rancher Advance 2 N/A


  • To obtain a Psirow in Monster Rancher 4, use
  • To obtain a Psirow in Monster Rancher Advance, use the password Gypsie.
  • To obtain a Psirow in Monster Rancher Advance 2, use the password B11.

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